chore(release): publish packages

[SelaseKay]

• firebase_ui_auth@3.1.0
• firebase_ui_database@2.1.0
• firebase_ui_firestore@2.1.0
• firebase_ui_localizations@2.1.0
• firebase_ui_oauth@2.1.0
• firebase_ui_oauth_apple@2.1.0
• firebase_ui_oauth_facebook@2.1.0
• firebase_ui_oauth_google@2.1.0
• firebase_ui_oauth_twitter@2.1.0
• firebase_ui_shared@1.5.0
• firebase_ui_storage@3.1.0

Description

Replace this paragraph with a description of what this PR is doing. If you're modifying existing behavior, describe the existing behavior, how this PR is changing it, and what motivated the change.

Related Issues

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Checklist

Before you create this PR confirm that it meets all requirements listed below by checking the relevant checkboxes ([x]).
This will ensure a smooth and quick review process. Updating the pubspec.yaml and changelogs is not required.

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• My PR includes unit or integration tests for all changed/updated/fixed behaviors (See Contributor Guide).
• All existing and new tests are passing.
• I updated/added relevant documentation (doc comments with ///).
• The analyzer (melos run analyze) does not report any problems on my PR.
• All unit tests pass (melos run test:unit:all doesn't fail).
• I read and followed the Flutter Style Guide.
• I signed the CLA.
• I am willing to follow-up on review comments in a timely manner.

Breaking Change

Does your PR require plugin users to manually update their apps to accommodate your change?

• Yes, this is a breaking change.
• No, this is not a breaking change.

[gemini-code-assist]

Code Review

This pull request updates the versions and dependencies of multiple Firebase UI packages (including auth, database, firestore, localizations, oauth, shared, and storage) to their latest releases. The changes involve updating version numbers and dependency constraints in pubspec.yaml files across packages, examples, and tests, as well as documenting the new features and fixes in the respective CHANGELOG.md files. All review comments were filtered out as they pertained to non-code changes, so there is no additional feedback to provide.